Hot Air Duct Fan Ø100 mm up to 150°C | MMotors VOK120H

MMOTORS VOK120H | Ø100 MM | UP TO 150°C

The MMotors VOK120H is a high-temperature inline duct fan designed for the distribution and extraction of hot air in installations with fireplaces, pellet stoves, heat recovery systems, warm air heating systems and technical ventilation applications.

Its robust galvanized steel construction, high-temperature motor and NSK Japan double-sealed bearings ensure reliable operation even in demanding environments where conventional ventilation fans cannot withstand elevated temperatures.

Designed for continuous operation with hot air temperatures up to 150°C, the VOK120H is a professional solution for residential and industrial installations requiring efficient and constant heat circulation.

Also available as VOK120HT, equipped with an integrated thermostat for automatic operation according to system temperature.

Illustrative example of forced hot air distribution in heating systems, heat recovery units and fireplaces.

Up to 150°C Ø100 mm IP44 NSK Japan

Quality & Reliability MMotors

The MMotors VOK120H combines carefully selected components for continuous hot air operation, providing excellent thermal resistance, low maintenance requirements and a long service life even in demanding applications.

• ✓ Galvanized steel housing, corrosion resistant and designed for demanding high-temperature applications.
• ✓ Fiberglass reinforced impeller (FRP), designed for continuous operation with hot air temperatures up to 150°C.
• ✓ High-temperature motor, optimized for warm air heating systems, heat recovery installations and technical ventilation.
• ✓ Integrated CelsiClock® 99/177 thermal indicator, allowing visual verification of the maximum temperature reached during operation.
• ✓ NSK Japan double-sealed bearings, providing up to 30,000 hours of service life with minimal maintenance.

Applications & Optional Automation

VOK120HT version available with integrated thermostat

The optional VOK120HT version automates fan operation, allowing hot air to be distributed only when useful heat is available within the system.

To ensure safe operation, optimum performance and a long service life, it is recommended to follow the guidelines below during installation and commissioning of the fan.

• ✅ Use the fan exclusively for hot air distribution and extraction.
• ✅ Follow the airflow direction indicated on the fan housing.
• ✅ Install the unit in duct systems compatible with temperatures up to 150°C.
• ✅ Ensure adequate airflow circulation around the motor and fan assembly.
• ✅ Complete all electrical connections in accordance with local regulations and the manufacturer's instructions.
• ❌ Do not install the fan inside combustion chambers.
• ❌ Do not use the fan for extracting smoke or combustion gases.
• ❌ Do not exceed the maximum operating conditions specified for the model.

Additional MMotors Motor Protection

MMotors motors feature a special winding impregnation treatment that helps protect internal electrical components against moisture, dust and demanding operating conditions.

• ✅ Improved electrical insulation of the motor
• ✅ Additional protection against moisture and airborne particles
• ✅ Reliable and stable long-term operation

Physical Dimensions

Outer Diameter (D)	120 mm
Duct Diameter (d)	100 mm
Dimension (a)	28 mm
Overall Length (L)	130 mm

📋 USAGE RECOMMENDATIONS

This fan is designed for hot air distribution and extraction in heating systems, heat recovery installations and technical ventilation applications.

For optimum performance and long service life, the unit should be used exclusively for clean air transport and operated within the conditions specified by the manufacturer.

• ✅ Hot air distribution and extraction
• ✅ Suitable for heating and heat recovery systems
• ✅ Recommended for clean, particle-free air

⚠️ CELSICLOCK® 99/177 SEAL

All MMotors high-temperature fans are equipped with a CelsiClock® 99/177 thermal indicator installed on the motor.

This indicator provides a visual reference of the maximum temperature reached during operation.

It offers a quick and simple way to verify that the fan is operating within the thermal conditions intended for this type of application.

CelsiClock® is an informational thermal indicator and does not perform any control, regulation or thermostat functions.

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